Enterprise VPN manager does not discover multiple BGP sessions between a router and a provider-cloud if both BGP sessions are between the same ip addresses.
We make use of NNI interfaces which run BGP per vrf. This can be achieved using sub-interfaces. A best practice is to use the same ip subnet on all sub-interfaces.
The sub initerface Se2/1.101 and Se2/1.102 have same IP address.
The three BGP sessions to remote as 1 are up
- 123.342.68.69 4 1 243 253 442127 0 0 00:39:55 0
- 123.342.68.69 4 1 224 234 442127 0 0 00:36:43 0
- 123.342.69.0 4 1 106786 50471 442127 0 0 00:32:57 0
Practically spectrum should Capture the above three BGP session.
I can discover them using EVPN manager, firts I chekc the GP peer table, In that I can see the session captured for
The third one with same IP address is missing.
Two sessions are modelled properly, there is one missing. The NNI’s which re-use the same IP subnet for each vrf are not properly modelled and BGP session monitoring is not possible. We require this feature to be added in spectrum.
Also the logical modelling is not possible in spectrum. The interface can be connected to only one ASN or cloud. If an interface is connected to two cloud same cannot be modelled in spectrum
Only one ASN can be linked to the interface, is this case, the e-vpn manager has linked ASN1 to interface gig0/3.1322 (and not ASN2)
We require this two features to be added in spectrum.
Thanks and Regards,